Diagnostic Methods, Chemical, Bacteriological and Microscopical; A Text-Book for Students and Practitioners (Paperback)

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: large size and do not have very great pathologic significance. They are largely composed of vegetable fibers taken in by inhalation and cemented by mucus which is hardened by the deposition of lime salts. In the condition known as ozena the nasal secretion is found to contain many large diplococci (Lowenberg). Klemperer and Schierer believe that the organism of ozena is probably Friedlander's bacillus, as it is very plentiful in the nasal secretions of this disease.1 III. The Aoral Secretion. Normally no secretions appear in the external ear, with the exception of that of cerumen, while the secretion of the middle ear and of the internal ear is normally inaccessible to examination. We find, therefore, that the chief importance which is attached to the clinical examination of the aural secretions, is entirely a pathological one. In catarrhal and inflammatory conditions of the external auditory canal, one finds naturally very large numbers of organisms, with which the disease may or may not be associated. In the chronic inflammatory processes of the middle ear, the more important organisms found are the pneumococcus, streptococcus pyogenes, staphylococcus pyogenes, bacillus pyocyaneus, the bacillus of Friedlander, the bacillus coli communis, the diplo- coccus intracellularis, the typhoid bacillus, and especially the diphtheria bacillus. As disease of the middle ear is so commonly associated with disease of the naso-pharynx, it is possible to find in the discharge from the ear any organism which is causing trouble either in the nose or in the throat. Hamilton has shown the almost constant presence of the pseudo-diphtheria bacillus in the discharge of the running ears following scarlet fever. It is not an uncommon thing to find certain inflammatory processes of parasitic o...